Moldeo de Plásticos - PLSTICOS Tipos y Procesos Prof Tabuchi Yagui Edgardo Toshiro 1 RESUMEN 1 2 3 4 5 Introduccin Extrusin Moldeo Calandrado

Moldeo de Plásticos - PLSTICOS Tipos y Procesos Prof...

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1 PLÁSTICOS Tipos y Procesos Prof: Tabuchi Yagui, Edgardo Toshiro
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RESUMEN 1. Introducción 2. Extrusión 3. Moldeo 4. Calandrado 5. Termoformado 2
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1. INTRODUCCIÓN 3
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Importancia de los Plásticos Como material: Bajo peso. Buena relación resistencia/peso Resistencia elevada a la corrosión. Baja conductividad térmica. Baja conductividad eléctrica Algunos son translúcidos o transparentes
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Limitaciones de los Plásticos Resistencia baja Se degradan bajo radiación solar. Propiedad de viscoelasticidad (limitante para aplicaciones en cojinetes)
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Clasificación Plásticos Por su naturaleza Naturales Sintéticos Por sus estructura interna Termoplásticos Amorfos Cristalinos Termoestables Elastómeros
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Estructura Interna Termoplásticos (TP) Macromoleculas unidas por fuerzas débiles. Cadenas moleculares lineales Termoestables o Termofijos (TS) Macromoleculas unidas fuertemente (reacción química). Cadenas moleculares fuertemente reticuladas Elastomeros (E) Estructura molecular similar a los termoplásticos Cadenas moleculares debilmente reticuladas
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Termoplásticos (TP) Amorfos Estructura liada (ovillo de
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